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制备了新能源汽车零部件储氢电池用Mg2Ni和Mg1.7Al0.2Ti0.1Ni0.8Cr0.2镁合金,并进行了显微组织、物相组成、充放电性能和耐腐蚀性能的测试。结果表明,与未添加合金元素的Mg2Ni合金相比,Mg1.7Al0.2Ti0.1Ni0.8Cr0.2合金的放电容量最大值从126 m Ah/g增加至768 m Ah/g;20次充放电循环后放电容量的衰减率下降78.44%,腐蚀电位正移251m V,Mg1.7Al0.2Ti0.1Ni0.8Cr0.2合金的充放电性和耐腐蚀性得到显著提高。
Preparation of Mg2Ni and Mg1.7Al0.2Ti0.1Ni0.8Cr0.2 magnesium alloy for hydrogen energy battery parts of new energy automotive parts, and the microstructure, phase composition, charge and discharge performance and corrosion resistance of the test. The results show that the maximum discharge capacity of Mg1.7Al0.2Ti0.1Ni0.8Cr0.2 alloy increases from 126 mAh / g to 768 mAh / g compared with that of Mg2Ni alloy without addition of alloying elements. The charge and discharge cycles The decay rate of post-discharge capacity decreased by 78.44% and the corrosion potential shifted by 251mV. The charge-discharge property and corrosion resistance of Mg1.7Al0.2Ti0.1Ni0.8Cr0.2 alloy were significantly improved.